lvm.cpp File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "lua.h"
#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
#include "lgc.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "ltm.h"
#include "lvm.h"

Include dependency graph for lvm.cpp:

Go to the source code of this file.

Macros
#define	lvm_c
#define	LUA_CORE
#define	MAXTAGLOOP   100
#define	luai_runtimecheck(L, c)   /* void */
#define	RA(i)   (base+GETARG_A(i))
#define	RB(i)   check_exp(getBMode(GET_OPCODE(i)) == OpArgR, base+GETARG_B(i))
#define	RC(i)   check_exp(getCMode(GET_OPCODE(i)) == OpArgR, base+GETARG_C(i))
#define	RKB(i)
#define	RKC(i)
#define	KBx(i)   (k + (GETARG_Bx(i) != 0 ? GETARG_Bx(i) - 1 : GETARG_Ax(*ci->u.l.savedpc++)))
#define	dojump(ci, i, e)
#define	donextjump(ci)   { i = *ci->u.l.savedpc; dojump(ci, i, 1); }
#define	Protect(x)   { {x;}; base = ci->u.l.base; }
#define	checkGC(L, c)
#define	arith_op(op, tm)
#define	vmdispatch(o)   switch(o)
#define	vmcase(l, b)   case l: {b} break;
#define	vmcasenb(l, b)   case l: {b} /* nb = no break */

Functions
const TValue *	luaV_tonumber (const TValue *obj, TValue *n)
int	luaV_tostring (lua_State *L, StkId obj)
static void	traceexec (lua_State *L)
static void	callTM (lua_State *L, const TValue *f, const TValue *p1, const TValue *p2, TValue *p3, int hasres)
void	luaV_gettable (lua_State *L, const TValue *t, TValue *key, StkId val)
void	luaV_settable (lua_State *L, const TValue *t, TValue *key, StkId val)
static int	call_binTM (lua_State *L, const TValue *p1, const TValue *p2, StkId res, TMS event)
static const TValue *	get_equalTM (lua_State *L, Table *mt1, Table *mt2, TMS event)
static int	call_orderTM (lua_State *L, const TValue *p1, const TValue *p2, TMS event)
static int	l_strcmp (const TString *ls, const TString *rs)
int	luaV_lessthan (lua_State *L, const TValue *l, const TValue *r)
int	luaV_lessequal (lua_State *L, const TValue *l, const TValue *r)
int	luaV_equalobj_ (lua_State *L, const TValue *t1, const TValue *t2)
void	luaV_concat (lua_State *L, int total)
void	luaV_objlen (lua_State *L, StkId ra, const TValue *rb)
void	luaV_arith (lua_State *L, StkId ra, const TValue *rb, const TValue *rc, TMS op)
static Closure *	getcached (Proto *p, UpVal **encup, StkId base)
static void	pushclosure (lua_State *L, Proto *p, UpVal **encup, StkId base, StkId ra)
void	luaV_finishOp (lua_State *L)
void	luaV_execute (lua_State *L)

Macro Definition Documentation

#define arith_op	(		op,
			tm
	)

Value:

{ \
        TValue *rb = RKB(i); \
        TValue *rc = RKC(i); \
        if (ttisnumber(rb) && ttisnumber(rc)) { \
          lua_Number nb = nvalue(rb), nc = nvalue(rc); \
          setnvalue(ra, op(L, nb, nc)); \
        } \
        else { Protect(luaV_arith(L, ra, rb, rc, tm)); } }

Definition at line 520 of file lvm.cpp.

Referenced by luaV_execute().

#define checkGC	(		L,
			c
	)

Value:

Protect( luaC_condGC(L,{L->top = (c);  /* limit of live values */ \
                          luaC_step(L); \
                          L->top = ci->top;})  /* restore top */ \
           luai_threadyield(L); )

Definition at line 513 of file lvm.cpp.

Referenced by luaV_execute().

#define dojump	(		ci,
			i,
			e
	)

Value:

{ int a = GETARG_A(i); \
    if (a > 0) luaF_close(L, ci->u.l.base + a - 1); \
    ci->u.l.savedpc += GETARG_sBx(i) + e; }

Definition at line 502 of file lvm.cpp.

Referenced by luaV_execute().

#define donextjump

(

ci

)

{ i = *ci->u.l.savedpc; dojump(ci, i, 1); }

Definition at line 508 of file lvm.cpp.

Referenced by luaV_execute().

#define KBx

(

i

)

(k + (GETARG_Bx(i) != 0 ? GETARG_Bx(i) - 1 : GETARG_Ax(*ci->u.l.savedpc++)))

Definition at line 497 of file lvm.cpp.

#define LUA_CORE

Definition at line 12 of file lvm.cpp.

#define luai_runtimecheck	(		L,
			c
	)		/* void */

Definition at line 485 of file lvm.cpp.

Referenced by luaV_execute().

#define lvm_c

Definition at line 11 of file lvm.cpp.

#define MAXTAGLOOP   100

Definition at line 31 of file lvm.cpp.

Referenced by luaV_gettable(), and luaV_settable().

#define Protect

(

x

)

{ {x;}; base = ci->u.l.base; }

Definition at line 511 of file lvm.cpp.

Referenced by luaV_execute().

#define RA

(

i

)

(base+GETARG_A(i))

Definition at line 489 of file lvm.cpp.

Referenced by luaV_execute().

#define RB

(

i

)

check_exp(getBMode(GET_OPCODE(i)) == OpArgR, base+GETARG_B(i))

Definition at line 491 of file lvm.cpp.

Referenced by luaV_execute().

#define RC

(

i

)

check_exp(getCMode(GET_OPCODE(i)) == OpArgR, base+GETARG_C(i))

Definition at line 492 of file lvm.cpp.

#define RKB

(

i

)

Value:

check_exp(getBMode(GET_OPCODE(i)) == OpArgK, \
    ISK(GETARG_B(i)) ? k+INDEXK(GETARG_B(i)) : base+GETARG_B(i))

Definition at line 493 of file lvm.cpp.

Referenced by luaV_execute().

#define RKC

(

i

)

Value:

check_exp(getCMode(GET_OPCODE(i)) == OpArgK, \
    ISK(GETARG_C(i)) ? k+INDEXK(GETARG_C(i)) : base+GETARG_C(i))

Definition at line 495 of file lvm.cpp.

Referenced by luaV_execute().

#define vmcase	(		l,
			b
	)		case l: {b} break;

Definition at line 531 of file lvm.cpp.

Referenced by luaV_execute().

#define vmcasenb	(		l,
			b
	)		case l: {b} /* nb = no break */

Definition at line 532 of file lvm.cpp.

Referenced by luaV_execute().

#define vmdispatch

(

o

)

switch(o)

Definition at line 530 of file lvm.cpp.

Referenced by luaV_execute().

Function Documentation

static int call_binTM ( lua_State *  L, const TValue *  p1, const TValue *  p2, StkId  res, TMS  event  )

static

Definition at line 174 of file lvm.cpp.

References callTM(), luaT_gettmbyobj(), and ttisnil.

Referenced by call_orderTM(), luaV_arith(), and luaV_concat().

static int call_orderTM ( lua_State *  L, const TValue *  p1, const TValue *  p2, TMS  event  )

static

Definition at line 199 of file lvm.cpp.

References call_binTM(), l_isfalse, and lua_State::top.

Referenced by luaV_lessequal(), and luaV_lessthan().

static void callTM ( lua_State *  L, const TValue *  f, const TValue *  p1, const TValue *  p2, TValue *  p3, int  hasres  )

static

Definition at line 92 of file lvm.cpp.

References lua_State::ci, isLua, luaD_call(), restorestack, savestack, setobj2s, setobjs2s, and lua_State::top.

Referenced by call_binTM(), luaV_equalobj_(), luaV_gettable(), luaV_objlen(), and luaV_settable().

static const TValue* get_equalTM ( lua_State *  L, Table *  mt1, Table *  mt2, TMS  event  )

static

Definition at line 185 of file lvm.cpp.

References fasttm, and luaV_rawequalobj.

Referenced by luaV_equalobj_().

static Closure* getcached ( Proto *  p, UpVal **  encup, StkId  base  )

static

Definition at line 379 of file lvm.cpp.

References c, Proto::cache, i, Upvaldesc::idx, Upvaldesc::instack, Closure::l, Proto::sizeupvalues, LClosure::upvals, Proto::upvalues, and UpVal::v.

Referenced by luaV_execute().

static int l_strcmp ( const TString *  ls, const TString *  rs  )

static

Definition at line 208 of file lvm.cpp.

References getstr, TString::len, and TString::tsv.

Referenced by luaV_lessequal(), and luaV_lessthan().

void luaV_arith	(	lua_State *	L,
		StkId	ra,
		const TValue *	rb,
		const TValue *	rc,
		TMS	op
	)

Definition at line 360 of file lvm.cpp.

References c, call_binTM(), LUA_OPADD, luaG_aritherror(), luaO_arith(), luaV_tonumber(), nvalue, setnvalue, and TM_ADD.

Referenced by lua_arith(), and luaV_execute().

void luaV_concat	(	lua_State *	L,
		int	total
	)

Definition at line 293 of file lvm.cpp.

References call_binTM(), G, i, lua_assert, luaG_concaterror(), luaG_runerror(), luaS_newlstr(), luaZ_openspace(), MAX_SIZET, setobjs2s, setsvalue2s, svalue, TM_CONCAT, lua_State::top, tostring, tsvalue, ttisnumber, and ttisstring.

Referenced by lua_concat(), luaO_pushvfstring(), luaV_execute(), and luaV_finishOp().

int luaV_equalobj_	(	lua_State *	L,
		const TValue *	t1,
		const TValue *	t2
	)

Definition at line 260 of file lvm.cpp.

References bvalue, callTM(), eqshrstr, fvalue, gcvalue, get_equalTM(), hvalue, iscollectable, l_isfalse, lua_assert, LUA_TBOOLEAN, LUA_TLCF, LUA_TLIGHTUSERDATA, LUA_TLNGSTR, LUA_TNIL, LUA_TNUMBER, LUA_TSHRSTR, LUA_TTABLE, LUA_TUSERDATA, luaS_eqlngstr(), nvalue, pvalue, rawtsvalue, TM_EQ, lua_State::top, ttisequal, ttype, and uvalue.

void luaV_execute

(

lua_State *

L

)

Definition at line 534 of file lvm.cpp.

References arith_op, CallInfo::callstatus, cast_int, checkGC, lua_State::ci, CIST_REENTRY, CIST_TAIL, clLvalue, dojump, donextjump, equalobj, CallInfo::func, GET_OPCODE, GETARG_A, GETARG_Ax, GETARG_B, GETARG_Bx, GETARG_C, GETARG_sBx, getcached(), getproto, h, lua_State::hookcount, lua_State::hookmask, hvalue, i, ai::registry::init(), isLua, Proto::k, CallInfo::l, l_isfalse, LFIELDS_PER_FLUSH, lua_assert, LUA_MASKCOUNT, LUA_MASKLINE, LUA_MULTRET, LUA_QL, luaC_barrier, luaC_barrierback, luaD_call(), luaD_checkstack, luaD_poscall(), luaD_precall(), luaF_close(), luaG_runerror(), luaH_new(), luaH_resize(), luaH_resizearray(), luaH_setint(), luai_runtimecheck, luaO_fb2int(), luaV_arith(), luaV_concat(), luaV_gettable(), luaV_lessequal(), luaV_lessthan(), luaV_objlen(), luaV_settable(), Proto::numparams, nvalue, obj2gco, OP_ADD, OP_CALL, OP_CLOSURE, OP_CONCAT, OP_DIV, OP_EQ, OP_EXTRAARG, OP_FORLOOP, OP_FORPREP, OP_GETTABLE, OP_GETTABUP, OP_GETUPVAL, OP_JMP, OP_LE, OP_LEN, OP_LOADBOOL, OP_LOADK, OP_LOADKX, OP_LOADNIL, OP_LT, OP_MOD, OP_MOVE, OP_MUL, OP_NEWTABLE, OP_NOT, OP_POW, OP_RETURN, OP_SELF, OP_SETLIST, OP_SETTABLE, OP_SETTABUP, OP_SETUPVAL, OP_SUB, OP_TAILCALL, OP_TEST, OP_TESTSET, OP_TFORCALL, OP_TFORLOOP, OP_UNM, OP_VARARG, Proto::p, LClosure::p, CallInfo::previous, Protect, pushclosure(), RA, RB, RKB, RKC, setbvalue, setclLvalue, sethvalue, setnilvalue, setnvalue, setobj, setobj2s, setobjs2s, Table::sizearray, Proto::sizep, lua_State::stack, lua_State::stacksize, TM_ADD, TM_DIV, TM_MOD, TM_MUL, TM_POW, TM_SUB, TM_UNM, tonumber, CallInfo::top, lua_State::top, traceexec(), ttisnil, ttisnumber, ttistable, CallInfo::u, LClosure::upvals, UpVal::v, vmcase, vmcasenb, and vmdispatch.

Referenced by luaD_call(), resume(), and unroll().

void luaV_finishOp

(

lua_State *

L

)

Definition at line 423 of file lvm.cpp.

References cast_int, lua_State::ci, GET_OPCODE, GETARG_A, GETARG_B, GETARG_C, ISK, CallInfo::l, l_isfalse, lua_assert, luaT_gettmbyobj(), luaV_concat(), OP_ADD, OP_CALL, OP_CONCAT, OP_DIV, OP_EQ, OP_GETTABLE, OP_GETTABUP, OP_JMP, OP_LE, OP_LEN, OP_LT, OP_MOD, OP_MUL, OP_POW, OP_SELF, OP_SETTABLE, OP_SETTABUP, OP_SUB, OP_TAILCALL, OP_TFORCALL, OP_TFORLOOP, OP_UNM, setobj2s, setobjs2s, TM_LE, CallInfo::top, lua_State::top, ttisnil, and CallInfo::u.

Referenced by unroll().

void luaV_gettable	(	lua_State *	L,
		const TValue *	t,
		TValue *	key,
		StkId	val
	)

Definition at line 109 of file lvm.cpp.

References callTM(), fasttm, hvalue, luaG_runerror(), luaG_typeerror(), luaH_get(), luaT_gettmbyobj(), MAXTAGLOOP, Table::metatable, setobj2s, TM_INDEX, ttisfunction, ttisnil, and ttistable.

Referenced by lua_getfield(), lua_getglobal(), lua_gettable(), and luaV_execute().

int luaV_lessequal	(	lua_State *	L,
		const TValue *	l,
		const TValue *	r
	)

Definition at line 243 of file lvm.cpp.

References call_orderTM(), l_strcmp(), luaG_ordererror(), nvalue, rawtsvalue, TM_LE, TM_LT, ttisnumber, and ttisstring.

Referenced by lua_compare(), and luaV_execute().

int luaV_lessthan	(	lua_State *	L,
		const TValue *	l,
		const TValue *	r
	)

Definition at line 231 of file lvm.cpp.

References call_orderTM(), l_strcmp(), luaG_ordererror(), nvalue, rawtsvalue, TM_LT, ttisnumber, and ttisstring.

Referenced by lua_compare(), and luaV_execute().

void luaV_objlen	(	lua_State *	L,
		StkId	ra,
		const TValue *	rb
	)

Definition at line 335 of file lvm.cpp.

References callTM(), cast_num, fasttm, hvalue, LUA_TSTRING, LUA_TTABLE, luaG_typeerror(), luaH_getn(), luaT_gettmbyobj(), Table::metatable, setnvalue, TM_LEN, tsvalue, ttisnil, and ttypenv.

Referenced by lua_len(), and luaV_execute().

void luaV_settable	(	lua_State *	L,
		const TValue *	t,
		TValue *	key,
		StkId	val
	)

Definition at line 135 of file lvm.cpp.

References callTM(), cast, fasttm, hvalue, invalidateTMcache, luaC_barrierback, luaG_runerror(), luaG_typeerror(), luaH_get(), luaH_newkey(), luaO_nilobject, luaT_gettmbyobj(), MAXTAGLOOP, Table::metatable, obj2gco, setobj2t, TM_NEWINDEX, ttisfunction, ttisnil, and ttistable.

Referenced by lua_setfield(), lua_setglobal(), lua_settable(), and luaV_execute().

const TValue* luaV_tonumber	(	const TValue *	obj,
		TValue *	n
	)

Definition at line 34 of file lvm.cpp.

References luaO_str2d(), setnvalue, svalue, tsvalue, ttisnumber, and ttisstring.

Referenced by luaG_aritherror(), and luaV_arith().

int luaV_tostring	(	lua_State *	L,
		StkId	obj
	)

Definition at line 46 of file lvm.cpp.

References lua_number2str, LUAI_MAXNUMBER2STR, luaS_newlstr(), nvalue, setsvalue2s, and ttisnumber.

Referenced by lua_tolstring().

static void pushclosure ( lua_State *  L, Proto *  p, UpVal **  encup, StkId  base, StkId  ra  )

static

Definition at line 401 of file lvm.cpp.

References Proto::cache, i, Upvaldesc::idx, Closure::l, luaC_barrierproto, luaF_findupval(), luaF_newLclosure(), LClosure::p, setclLvalue, Proto::sizeupvalues, LClosure::upvals, and Proto::upvalues.

Referenced by luaV_execute().

static void traceexec ( lua_State *  L )

static

Definition at line 59 of file lvm.cpp.

References CallInfo::callstatus, lua_State::ci, ci_func, CIST_HOOKYIELD, CallInfo::func, getfuncline, lua_State::hookcount, lua_State::hookmask, CallInfo::l, LUA_HOOKCOUNT, LUA_HOOKLINE, LUA_MASKCOUNT, LUA_MASKLINE, LUA_YIELD, luaD_hook(), luaD_throw(), lua_State::oldpc, pcRel, resethookcount, lua_State::status, lua_State::top, and CallInfo::u.

Referenced by luaV_execute().